Patent GB-189820106-A (GB)
Title: Improvements in Rotary Engines.
Inventor: QUINCEY SAMUEL
Filed: 1898-09-22
Granted: 1899-08-26
Abstract: 20,106. Quincey, S. Sept. 22. Crescent-shaped chamber type.-The Figures show a compound rotary engine, Fig. 2 showing the arrangement of automatic distributing-valves when two cylinders are used, and Fig. 14 the arrangement when three cylinders are used. When the slide valve 14, Fig. 1, actuated by a handle 15, is arranged to admit steam from a groove in a sleeve 12<a>, secured to an extension 12 of the shaft A by conical parts 12<c>, 12<e> and a nut 12<d>, through ports 14<b> and 16<b> to the steam passage 13<a>, the steam pressure moves the two-faced valve 17<a>, Figs. 2 and 14, and the slide valve 18<a>, and through a lever 20, Fig. 2, with which the rods 19<a>, 19 have pin-and-slot connections, moves the valves 17, 18 into the positions shown. Steam then passes by a passage 22 to the high-pressure cylinder 1, from which the exhaust passes to the chamber 21, and thence by a passage 25 to the low-pressure or intermediate cylinder, from which the steam passes by passages 25<a> and the chamber 21<a> to the exhaust 24, Fig. 2, or by passages 41<a>, 42<a>, Fig. 14, to the third cylinder, the exhaust being controlled by an automatic valve 48. The cylinders are connected in such a way that the cylinder space in front of the vane, while the vane is making the active portion of the revolution, is in free communication with the exhaust of the next cylinder. To reverse the engine, the valve 14, Fig. 1, is moved so as to admit steam to the passage 13. The block 16, which carries the projections 16<d> passing through stuffing-boxes 11<b>, is pressed by springs 16<c> against the valve 14, and may have depending guiding-flanges. The vanes 5 and 6, which slide in eccentric hubs, are arranged 180‹ apart, and are pressed against the cylinder by pistons 29, as described in Specification No. 27,518, A.D. 1897. These pistons are connected to levers 33 pivoted at one end to the shaft and carrying at the other end rollers which bear against the vanes. The action of the pistons is aided by springs 31. Fig. 5 shows steam passages 28<a>, 28b, automatically controlled by a winged valve 30 for admitting steam through a port 3<a> to the cylinder 28 of the high-pressure cylinder. The passages 32, 32<a> leading to the low-pressure cylinder pass through a flanged collar 3<b> on the shaft. Each vane is provided with bearing-rollers 36, either rotatably mounted or adapted to work in grooves 36<a> lined with spring-pressed bearing-plates. Wedge-shaped packing-pieces 3<c>, provided at each enlarged end with a slot containing a spring engaging a pin projecting from the hub, are used. A shoe 34, having an endwise removable wearing-strip 34<A>, is rotatably attached by plates 33<a> and pins 34<c> to each vane, spring-pressed packing-strips 35, 35* being provided. The hubs are strengthened by connecting them to the shaft flanges 47 and 3<b> by continuous or sectional projecting rings 47<a> engaging corresponding recesses in the hubs as described in Specification No. 27,518, A.D. 1897. The shaft bearings consist of slit and grooved cones 41 having projecting pins 43 engaging slots in a cone case or ring 42, or having slots to receive pins from a cap 46 screwed to a boss 8<b>. The case 42 is screwed into the cover 7<a>, and has on its periphery teeth to engage a worm, mounted in the cover and actuated by a spindle carrying a coned part held against its seat by a bush, whereby the bearing can be tightened to compensate for wear. Spring-pressed packing-strips 39 and split rings 12<r>, 47<b>, and 40 are provided. When the engine is not reversible, the valve arrangements shown in Figs. 2 and 14 are replaced by suitable passages.